Moving from the US to Quebec: What Changes on Your Taxes

Americans moving to Quebec, often for Montreal’s aerospace and gaming industry or Quebec City’s government and insurance sector, run into a tax system that works differently from the rest of Canada. Quebec is the only province that administers its own separate income tax return alongside the federal one, so a US citizen living in Montreal files three returns every year: a US 1040, a Canadian federal T1, and a Quebec TP-1. Quebec also has the highest top marginal rate in the country, its own sales tax administration, and its own health insurance program with a waiting period. None of that changes your US filing obligations, which continue on worldwide income for as long as you hold US citizenship or a green card.

What are Quebec’s income tax rates?

Quebec runs its own progressive bracket system, separate from and in addition to federal tax. The 2025 provincial brackets:

Taxable income (Quebec)	Provincial rate
Up to $53,255	14%
$53,255 to $106,495	19%
$106,495 to $129,590	24%
Over $129,590	25.75%

Add federal tax (15% to 33% across its own brackets) and the combined top marginal rate lands at roughly 53% on income above $129,590, the highest combined rate of any Canadian province, and it arrives at a lower income threshold than Ontario or BC. Quebec residents do get a federal abatement (a 16.5% reduction of federal tax) to offset the fact that Quebec runs its own system, but the combined burden is still the country’s heaviest at upper-middle income levels.

Why does Quebec need a separate tax return?

Quebec is the only province that collects its own personal income tax directly rather than piggybacking on the federal return the CRA administers for every other province. Revenu Québec runs the TP-1 return independently of the CRA’s T1.

• Three returns for a US citizen. Your US 1040 covers worldwide income to the IRS. Your federal T1 goes to the CRA. Your TP-1 goes to Revenu Québec. Each has its own forms, its own deadlines (the TP-1 and T1 are both due April 30, with a June 15 extension for self-employed filers), and its own credits.
• Separate assessments, separate correspondence. A reassessment or audit can come from Revenu Québec independent of anything the CRA does. Keep records that satisfy both.
• Different provincial credits. Quebec has its own solidarity tax credit, work premium, and childcare tax credit, none of which show up on the federal return.

What about sales tax on everyday purchases?

Quebec administers its own sales tax (QST) alongside the federal GST, and the two combine to roughly 15% on most goods and services, higher than the HST-only provinces once you account for how the two taxes stack.

Tax	Rate	Administered by
GST (federal)	5%	CRA
QST (Quebec)	9.975%	Revenu Québec
Combined effective rate	~14.975%	Both, separately

Unlike Ontario or the Atlantic provinces, which blend federal and provincial sales tax into a single HST, Quebec keeps QST and GST as two separate taxes with two separate registration and remittance systems if you run a business. Retail receipts show both lines separately.

When does RAMQ health coverage start?

RAMQ (Régie de l’assurance maladie du Québec) is Quebec’s public health insurance program, and like every other province’s plan, it has a waiting period for new residents.

• The gap. Coverage generally starts after a waiting period from the date you establish Quebec residency (commonly around three months, with some exceptions for returning residents and certain visa categories). During the gap, you need private health insurance.
• US coverage stops at the border. Whatever US employer plan or COBRA continuation you had ends when you leave the country. Line up private coverage before you land, not after.
• Register early. Apply for a RAMQ card as soon as you have proof of Quebec address and immigration status. The effective date is set from your application, so delay costs you coverage days.

What happens to my 401(k), IRA, and Roth IRA?

US retirement accounts do not convert into Canadian accounts. Quebec follows the federal Canadian treatment on all of these, so the analysis is the same as anywhere else in Canada, it just runs through the TP-1 as well as the T1.

• 401(k) and traditional IRA. Treaty Article XVIII protects the tax deferral, so these accounts keep growing tax-deferred while you live in Quebec. Withdrawals are taxed by both countries, with a foreign tax credit coordinating the two. Some people run Roth conversions before the move to control the timing of that tax.
• Roth IRA. A Roth IRA does not get automatic tax-free treatment in Canada. You need to file a one-time treaty election with your first Canadian return (both federal and Quebec follow the same treaty position) or the growth becomes taxable to Canada and Quebec going forward.
• FBAR and FATCA. None of this changes your US reporting. FBAR and FATCA Form 8938 obligations continue on your Canadian accounts once you’re a US person living abroad, and they layer on top of, not instead of, your regular US income tax filing.

Does moving to Quebec bring any upside?

Quebec’s tax burden comes with social programs that most US states don’t offer, and they change the household math even when the tax rate does not.

• Subsidized daycare. Quebec’s public daycare program runs at a flat low daily rate (a small fraction of typical US childcare costs), a real offset against the higher income tax for a family with young kids.
• Cheaper tuition. Quebec universities charge lower tuition than most US private and even public out-of-state institutions, relevant if you’re planning for kids’ education on a longer horizon.
• Longer parental leave. Quebec’s parental insurance plan (QPIP) offers more generous paid leave than most US employers provide, funded through payroll premiums rather than employer policy.

Do I need to speak French?

French is Quebec’s official working language, and Bill 96 tightened requirements for services, contracts, and workplace communication in French, which matters for anything beyond tax mechanics but is worth flagging before the move.

• Government forms. RAMQ, Revenu Québec, and most provincial services default to French, though English service remains available for most day-to-day interactions in Montreal specifically.
• Workplace impact. Bill 96 expanded French-language requirements for businesses of a certain size, which can affect employment contracts and internal communication if your employer operates in Quebec.
• Montreal vs. elsewhere in the province. Montreal is far more bilingual day-to-day than Quebec City or smaller Quebec towns, which is a practical consideration for settling in, separate from the tax and legal requirements.

What should I do next?

Model both the US and Canadian tax positions before you move so you know what the Quebec bracket structure and the FTC actually produce for your income level, and set up RAMQ and private coverage for the gap before you land.

• Moving from Quebec to the US, the reverse direction of this corridor
• Moving from the US to Ontario, the sister reverse-corridor article
• Moving from Canada to Vermont, the Quebec-border state
• American moving to Canada for the first time, the general first-year checklist
• Pre-move tax planning, the planning window before the move
• Dual-status return vs full-year election, the US filing choice for the year of the move
• RRSP vs 401(k), how the treaty protects US retirement accounts
• Does a Roth IRA stay tax-free in Canada?, the election you need to file
• FBAR filing requirements, what continues after the move
• Canada vs US tax rates compared, the broader rate picture

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.